hMenu% Specifies the menu.
wIDEnableItem% Specifies the menu item to be checked. The
wIDEnableItem% parameter can specify pop-up menu
items as well as menu items.
wEnable% Specifies the action to take. It can be a
combination of MF_DISABLED, MF_ENABLED, and
MF_GRAYED. These values can be combined by using
the bitwise OR operator.
Return Value The return value specifies the previous state of the
menu item. The return value is -1 if the menu item
does not exist.